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Finding the Fourth Proportional to 1,416.85, 1,953.19 and 995.94

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Solution

The fourth proportional to 1,416.85, 1,953.19 and 995.94 is: 1,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.85 : 1,953.19 = 995.94 : x
  2. Step 2: Convert to fraction form
    1,416.85/1,953.19 = 995.94/x
  3. Step 3: Cross multiply
    1,416.85x = 1,953.19 × 995.94
  4. Step 4: Simplify right side
    1,416.85x = 1,945,260.05
  5. Step 5: Solve for x
    x = 1,945,260.05/1,416.85
  6. Step 6: Final answer
    x = 1,372.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.